Can-body-sviaking machine



(No Model.) a SheetsSheet 1.

O. M. SYMONDS. (JAN BODY MAKING MACHINE.

No; 516,033. Patented Mags. 6, 1894-.

3 Sheets-Sheet 3.'

Patented Mar. 6, 1894.-

0. M. SYMONDS. CAN BODY MAKING MAGHINE.

(No Model.)

Q m wu UNrrsn S'rnrns PATENT @rricn CLARENCE M SYMONDS, OF SANFRANCISCO, CALIFORNIA.

CAN-BODY-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 516,033, dated March 6,1894.

Application filed October 3, 1893. Serial No. d8'7,084=.

To ail whom it may concern:

Be it known that I, CLARENCE M. SYMONDS, a citizen of the United States,residingin the city and county of San Francisco, State of California,have invented an Improvement in Can-Body-Making Machines; and I herebydeclare the following to be a full, clear, and exact description of thesame.

My invention relates to an apparatus for making can bodies.

It consists in certain details of construction which will be more fullyexplained by reference to the accompanying drawings, in which- Figure lis a side elevation of a part of my apparatus. Fig. 2 is a plan view andpartial section of the same. Fig. 3 is a transverse section, showing thefirst of the forming jaws separated from each other. Fig. 4. is asimilar section on the line zo-x of Fig. 2 showing the jaws broughtnearly together and in readiness to form the hooks upon the uptiirnededges of the can. Fig. 5 is a similar section on said line a3:c showingthe jaws closed and the hooks formed. Fig. 6 is a perspective view ofpart of the independent carrier. Fig. 7 is an end view showing thesecond pair of jaws open and the sheet of metal between them inreadiness to be closed and the hooks clasped. Fig. 8 is an end viewshowing the jaws brought together and the sheet of metal closed into acylindrical form, with the hook edges overlapping. Fig. 9 shows the canbody with the overlapping edges closed to form the side seam. Fig. 10 isan end view showing a portion of the carrier and former. Fig. 11 is atransverse section showing the can in position with rela' tion to thesoldering apparatus. Fig. 12 isa perspective view of the movable guideblocks M. Fig. 13 is a modification of the supporting bar over which thecan body passes after the seam is closed. Fig. 14 is a section showingthe seam closing devices.

In carrying out my invention I employ successive sets of independentjaws, and an independent reciprocating interior carrier by which theprepared sheets of metal are advanced intermittently and delivered tothe jaws, mechanism by which the sheet so delivered is bent, hooksformed upon the edges, said hooks caused to interlock, and the scam (Nomodel.)

thus formed finally closed, the can so formed then advanced to thesoldering mechanism where the seam is finally sealed and completed, andmechanism by which these parts are operated with relation to each otherat the proper intervals.

The sheet of which the can is to be formed is cut into the proper sizeand shape by any suitable mechanism, not here described, and is thendelivered upon a table A in front of a cross-plate B which is secured tothe longitudinal reciprocating carrier bar 0. The cross-plate B hasdownwardly projecting lugs B which enter the corresponding grooves inthe table, and serve to guide and steady it in its movements, and alsoto prevent the tin from slipping beneath the cross-plate. Secured to thereciprocating bar C are two arms D projecting upon each side of the bar,and forming a sort of yoke, as shown in Figs. 2 and 6 so as to pass theforming die K. These arms serve to advance the can body at a certainstage in its formation as will be hereinafter described. The lower jaw Iis recessed to pass over the ends of the arms when the jaw is raised.

The carrier bar G is reciprocated by means of an arm or link E connectedwith it at one end,having the other end actuated by a suitable cam F,and its intermediate portion ful' crumed as shown at G. The cam F isfixed upon a shaft H extending longitudinally with relation to thecarrier bar, and other parts of the machine, and this shaft furnishespower to actuate the other portions of the apparatus at the propertimes. An upper shaft H carries cams to move the upper jaws, and isconnected with and driven in unison with the shaft H, by gearing nothere shown. The reciprocation of the bar C first delivers the sheet oftin between the upper and lower jaws I and I which are caused toreciprocate toward each other by means of cams J and J mountedrespectively upon the shafts H and H. Projections upon theouter ends ofthe jaw I serve to keep A bar G its in grooves in the jaws and is heldin place by pins extending down into the jaws P and S, and is pressed upby springs 2 held in the same jaws. Hooks upon the bar 0' engage thesheet of metal after it is carried forward and prevent its being drawnthe sheet in the center.

back by the retraction of the bar 0. The bar former die K is slotted sothat the carrier has a groove or channel in the bottom, into bar 0 mayreciprocate freely through the slot,

which the points cf the hooks fall when the as previously described.Before the sheet of 70 sheet has passed. The lower jaw I has a U- metalis bent into the form here described, shapedchannelfoimedinitasshownatK,and the carrier bar will have been retracted, so when the sheet oftin has been delivered by that the ends of the arms D are behind thetbecarrierabove thejawI,asshownatL (Fig: sheet, and after the sheet isbent into this 3) it lies just bene 1th a U-shaped former die form, theforward movement of the carrier 7: K of such shape a Id size that whenthe lower bar brings the ends of these arms into con- 1o jaw I iselevated, the sheet is folded by the tact with the sheet and advances itto the U-shaped channel K around the U-shaped next set of jaws P and P,where it is reformer die K. The die K has a shank extained by a seco 1dlug or projection on the tending up into a cor responding socket in barC. The up or jawlremains down while 8c the jaw I, and a pin in projectsfrom the shank the tin is advanced nto the next pair of jaws 1:5through. a slot Z in the jaw which limits the P P in order to preventthe sides of the motion of the die. Above the shank in the sheet fromspringing apart. The lower jaw socket is a spiral sp ing m of sufficientP is stationary and has a flaring mouth or strength to hold the die downwhite the tin opening similar to that shown in the jaws S 85 is beingbent aroun 1 its 10 ver surface, but S in Fig. 14 to receive and guidethe tin asit 2c this spring yields as the jaws come together, enters.When the upper jaw is reciprocated and allows them to 010 e an I bendthe upper toward the lower one, the curvature of the edges of the tininto a hook form as hereinlower jaw is such that it retains the shape ofafter described. Th 3 jaws Iand Iare, as bethe lower curved poition ofthe sheet which fore stated, moved tow-6 rd e2 ch other by the isapproximately semicircular, while the two r5 cams J J, and they areretracted by springs arcs of different curvature forming the upper Jwhen released from the pressure of the jaw, as shown in Fig. 7, impingeupon the cams. The former die moves up with the on opposite hooked edgesof the sheet, and draw per jaw of which it forms a part, and when thehooks Q, which were formed in the prethus lifted is suspend d above andclear of the vious operation, together and cause them to 0 carrier 0.The uppe e lgescf the bent sheet overlap each other, as shown in Fig.8.When extend upward between the vertically sliding the jaws are againseparated, the elasticity of blocks M and M, which by their position thesheet of metalproducesatendency of the upon each side of the sheet ofmetal serve to edges to spring apart, and this drawsthe overrc supportit and prev an: its being buckled lapping hooks together,and causes themto en 5 when the upper jaw engages its upper edges gage, leaving thesheet of tin in an approxifor the purposeof in lung them to form themately cylindrical form. The carrier bar 0 hooks of the seam. Thesemovable blocks M has lugs R upon each side, which pass between M aresupported upon springs, as shown at the sides of the sheet when the baris retract- 105 N, which allow them to move downwardly ed, and beforethe sheet has been closed and 40 when the upper jaw I is depressed so asto hooked together. Theupper jaw has recesses bring its forming surfaceinto contact with P into which thelugsRarereceived when this the upperedges of the sheet of metal. The jaw closes down to hook the edges ofthe tin lower part of the jaw I has two semicircular together. After thesheet is closed, as above 1 IO grooves or channels 0 made at such pointsdescribed, it is in front of the two lugs R, and 5 that when the jaw Iis brought down, the upthe ends of. these two lugs project suflicientlyper edges of the sheet of tin will enter these beyond the diameter ofthe partially formed grooves or channels upon one side. In the can body,so that the next advance of the represent case, the position of thegrooves with ciprocating carrier bar, causes these lugs to I relation tothe upper edges of the sheet of engage the body and transfer it from thesec- 0 tin are such that the tin enters the right side ond pair of jawsI and P into the last set of of each groove and as the jaw approaches,the jaws S S which are stationary with relation to spring-actuatedblocks M M recede, thus aleach other, and have an open fiaringmouth,lowing the sheet of tin to project up between as shown in Fig. 14, intowhich the body as I them and form contact with the grooves, as beformedis moved from the jaws PP. As the fore stated. The movable blocks M Mserve can body enters the cylindrical opening in as supports upon eachside of the body of the the jaws S S, it is guided by a spring actusheetof tin and prevent its being buckled ated bar T in the jaw S, the frontend of by the pressure of the upper jaw, and the upwhich is beveled offas shown at T (Fig. 6) 12 per edges of the tin will thus follow thecurves so that the seam will pass along this beveled around and be bentinto semi-circular form end. The carrier bar has a beveled projecasplainly shown in Figs. 5 and 7. I have tion T which, when the bar isretracted, shown raised ledges upon the upper edges of presses the twohooks together in readiness the blocks M M, but these have nothing to tobe closed by the compression wheel. Upon 130 do with the formation ofthe hooks, but may the top of the carrier bar 0, at a point bein someinstances prevent the outer ends of yond the position occupied by thecan when the hooks being bent around too far and it is introduced intothe jaws S S, is a wheel curved inwardly. The lower part of the orroller U, shown in Figs. 2, 6, 9 and let. This roller has achanneledface which adapts it to fit the inner surface of the seam, andas the carrier bar 0 is retracted, the can body is graspedby two hooks Vwhich prevent its being withdrawn as the carrier bar moves backward, andthe roller U passing over the interlocked seam closes it firmly againstthe interior of the jaws S S within which the can body now rests. Twoother rollers U travel against the sides of the can body and jaws S Sduring this process, to keep the carrier bar central, and a bottomroller U travels against the bottom of the can and jaw S holding the barin placewithin the jaws, against the pressure of the seam closing toproller. The side rollers U are grooved or channeled to allow the hooksof the holding arms or dogs V to pass when the carrier bar and rollersare retracted.

Upon each side of the carrier bar C are fulcrumed the gravity pawls W,shown plainly in Fig. 13, and as the bar is retracted so as to movethese pawls through the can body, the front ends are depressed untilthey have reached the rear of the can, when the weight of the rear endstilts them upward, and causes them to engage with the rear edge of thenow completed can. The next forward movement of the carrier bar causesthese engaged pawls to force the can out of the jaws S S, and it is thenheld by the hooks V, and as the carrier bar is retracted, the can passesupon the supporting extension, or continuation 0 of the carrier bar,over which the can is moved intermittently, first passing beneath theacid tank, then beneath the soldering bar, and finally being deliveredover the end of the extension. These intermittent movements are effectedby the series of gravity pawls W and the spring-actuated hooks V,

the springs yielding to allow the hooks to' pass over the body of thecan when the carrier bar is moved forward, and retaining the can inposition when the carrier moves back. The pawls N of the support 0 arehung in channels formed in the support, and the sides of the support arechanneled longitudinally to admit the points of the hooks V. Thesoldering barY has its upper part inclosed in a casing a, through thebottom of which its lower edge projects so that the seam of the can bodypasses beneath and in contact with the edge of the soldering bar.Springs Y press the bar down with a yielding pressure. Within thechannel, on the top of the support and between the gravity pawls W, is abed of slate or other non-metallic substance which prevents the solderfrom adhering when it comes in contact with the surface.

b b are gas jets entering the sides of the casing a, and the formerimpinges upon the sides of the iron, thus keeping it heated to thepropertemperature.

The solder is applied in the form of small rods 0, one end of which issecured ina holder 61, and the other is moved forward intermittently soas to press against the soldering bar Y which melts off a sufficientamount from the rod to solder the can as it passes. As many of theserods of solder may be employed as are necessary along the line of thesoldering bar. I have shown but one for the purpose of illustration.

The holder d travels between guides and has a nut formed in its lowerend which fits upon a screw e. This screw is turned by a pawl andratchet mechanism f shown plainly in Figs. 1 and 11, theratchet wheelbeing fixed upon a screw shaft, and the pawl upon a swinging arm 9 whichis actuated by alever it moved by a cam 21 upon a shaft H. After the canhas passed beneath the soldering bar and the work is completed, it isfinally delivered at the end of the apparatus in a completed state.

p is a roller journaled beneath the outer end of the extension portionof the carrier, over which the cans pass tosupport and keep it in line.v I have heretofore described the apparatus so placed that the seam isformed upon the top, and is passed beneath a soldering iron, but themachine can be reversed without change, and the seam formed upon thebottom, so that the soldering may be done from below by means of asolder bath in any well known manner. The extension C of the carriermaybe made cylindrical, or in the form of a cross as shown in Fig. 13.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a can body forming machine, jaws movable to and from each otherand adapted to receive sheets of tin between them, a forming dieprojecting from one jaw and a U- shaped channel formed in the opposingjaw, adapted to fit the corresponding die and to bend the sheet of tinaround the lower part of said die, semi-circular grooves or channelsformed in the first named jaw into which the upper edges of the sheet ofmetal are forced by the approach of the jaws, and by which these edgesare bent into a hook-form when the jaws are brought together,substantially as herein described.

2. In a can ody forming machine, jaws situated one above the other,movable toward each other, and adapted to receive sheets of tin betweenthem, a forming die depending from the upper jaw, a U-shaped channelformed in the lower jaw adapted to fit the correspondingly shaped dieand to bend the sheet of tin around the lower part of saiddie,semicircular grooves or channels formed in the lower part of the upperjaw into which the upper edges of the sheet of metal are forced, and bywhich they are curved into a hookshaped form when the jaws are broughttogether, and movable supporting blocks M and M between which the sidesof the sheet of metal pass, and by which it is prevented from buckling,while the hooks are being formed, substantially as herein described.

IIC

3. In a can body making machine, vertically moving jaws, cams by whichthey are caused to approach each other, and springs by which they areretracted when relieved from the pressure of the cams, a U-shapedchannel formed in the lower jaw, a forming die depending from the upperjaw around which the middle part of a sheet of metal introduced betweenthe jaws is bent when the lower jaw is moved upward, semi-circu1argrooves or channels formed in the lower face of the upper jaw, intowhich the upper edges of the sheet of metal pass when the jaws approach,and by which these edges are curved into a hook-shaped form,spring-actuated holding blocks M M between which the sides of the sheetof metal are supported, while the upper edges are being curved into thehook-shaped form, substantially as herein described.

4. In a can body forming machine, jaws and. mechanism by which they aremoved to and from each other, a forming die around which the sheet oftin is bent, and grooves or channels by which the upper edges are bentinto a hook-shaped form, in combination with a reciprocating carrier bywhich the sheets of metal are moved forward between said jaws, and bywhich the partially bent sheet with its book flanges is moved out of theformer by the intermittent motions of the carrier, substantially asdescribed.

5. In a can body forming machine, the movable jaws by which the sheet ofmetal is first bent into a U-shaped form and the upper edges bent intohooks, a second pair of jaws between which the bent sheet is advanced,the lowermost of said jaws serving to support the semicircular lowerportion of the sheet, and the upper jaw having curves formed in itslower face by which the hooks on the upper edges of the sheet arebrought together and interlocked when the upper jaw approaches the lowerone, substantially as herein described.

6. In a can body forming machine, the jaws by which the sheet of metalis bent, hookshaped flanges formed upon it and interlocked with eachother, and other jaws having a cylindrical opening made through theminto which the sheet with its interlocked edges is moved, areciprocating interior carrier bar by which the forward movements of thesheet are produced, and a roller journaled in the upper part of the bar,and adapted to close the interlocking edges of the seam when the carrierbar is retracted through the jaws in which the can body is held,substantially as herein described.

7. The cylindrical stationary jaws, a carrier bar reciprocating throughthe interior, devices attached thereto by which the can body is advancedinto the jaws, an exterior guide against which one of the interlockededges of the seam is moved when the can enters the jaws, and a secondinterior guide by which they are pressed together, a roller journaled inthe top of the carrier bar at such a point that it is in front of thecan body when the latter is moved into the jaws, and is rolledbackwardly over the interior of the seam so as to close it when thecarrier is retracted, and guide rollers upon the sides and bottom of thecarrier bar, substantially as herein described.

8. In a can body forming machine, the jaws into which the can body isintroduced, a reciprocating carrier bar with lugs by which the can isadvanced into the jaws, and interior closing and guide rollers upon thecarrier bar, as shown, in combination with the hooks V adapted to engagethe rear edge of the can body and retain it in position while the bar isbeing retracted and the seam is being closed, substantially as hereindescribed.

9. In a can body forming machine, the independent successive pairs ofjaws between which the sheet of metal is introduced and bent into theform of a can, and its edges closed to form a seam, in combination witha reciprocating bar with devices by which the sheet and can aresuccessively moved forward from one set of jaws to the other anddelivered from the final seam closing jaws, an interior reciprocatingsupport upon which the can is carried from the seam closing jaws to passsuccessively beneath an acid tank, and a soldering bar, andspring-actuated hooks adapted to engage the rear edges of the can tohold it in position when it has been advanced by the carrier, andprevent its being retracted when the carrier recedes, substantially asherein described.

10. In a can body forming machine, theindependent successive formingjaws I, P and S, a carrier bar reciprocating longitudinally betweenthem, a transverse bar 13 attached thereto having the downwardlyprojecting guide lugsBand adapted to move the sheets forward into thefirst set of jaws, substantially as herein described.

11. In a can body forming machine, the successive sets of independentjaws by which the sheet of metal is formed into a can, a longitudinallyreciprocating carrier bar having a transverse plate by which the sheetis advanced between the first set of jaws, a yoke consisting of arms D Dattached to the bar and the ends adapted to engage the rear edge of thesheet after it has been bent by the first named jaws and advance itbetween the jaws by which the sheet is closed and the edges interlocked,lugs R R fixed to the carrier bar in such position that when the sheethas been closed and the edges interlocked, these lugs engage the rearedges of the sheet and move it forward into the jaws in which the seamis closed, substantially as herein described.

12. In a can body forming machine, the successive independent sets offorming jaws by which the sheet of metal is bent into the form of a canand the edges interlocked and compressed to form a longitudinal seam, aplate T having a beveled edge adapted to IIO guide the seam, as itenters the final jaws, andhooks engaging the edge of the can to retainit in position in said jaws, and guide and compression rollers attachedto the carrier bar which close and compress the seam whenthe bar isretracted through the intenor of the cans, substantially as hereindescribed.

13. In a can body forming machine, the successive sets of jaws betweenwhich the sheet of metal is bent into the form of a can body, jaws intowhich the can is moved after the edges have been interlocked, and withinwhich the seam is closed, said jaws having a divergent or funnel shapedmouth to act as a guide for the body of the can, and a spring actuatedbar having a beveled front end by which the outer edge of the seam isguided as the can enters the jaws, and an inner bar between which andthe outer one the parts of the seam are retained in line untilcompressed, substantially as herein described.

14. In a can body forming machine, the successive sets of forming jaws,a reciprocating carrier by which the sheet of metal is advancedintermittently between said jaws until the can body is formed and theseam closed, an interior reciprocating support which carries the canfrom the final jaws beneath an acid tank, a spring-actuated solderingbar extending along above the upper edge of the support, so that thelower edge will press upon the seam of the can when the latter passesbeneath it, gas jets upon each side of the soldering bar by which it iskept hot, and solder rods with a mechanism by which they are held andapproached to thesolderin g bar so that the ends are melted thereby andthe solder delivered upon the seam, substantially as herein described.

15. The interior reciprocating support by which the cans are advanced,the pawls by which they are moved, asoldering bar extending along abovethe support and adapted to form contact with the seam as the cans passbeneath it, a means for applying solder to the seam while the can ispassing, and an interior bed of slate over which the seam passes whilebeing soldered substantially as herein described.

16. A reciprocating support over which the cans pass, pawls by whichthey are moved, a soldering bar dependent above the support and in linewith the seam of the can which passes beneath it, aholder orholders inwhich rods of solder are supported with the ends approximate to thesoldering iron and the seam of the can which has passed beneath it, ameans for advancing the solder so that it will be melted and applied tothe seam, consisting of a screwand traveling nut by which the holder isadvanced,a pawl and ratchet, a swinging arm and a connection betweensaid arm, and a cam 41 upon the shaft l-l, substantially as hereindescribed.

17. In acanbody forming machine, the vertically disposed jaws betweenwhich the sheets of metal are delivered cam shafts and cams by which thejaws are caused to approach, a yielding former die connected with one ofthe jaws,and a correspondingly shaped channel in the other between whichthe sheet of metal is first bent into a U form, and groovesby which theupper edges are bent into a hook form by the approach of the jaws, andsprings by which the jaws are retracted when relieved from the pressureof the cams, substantially as herein described.

18. In a can body forming machine, independent jaws reciprocating to andfrom each other, and adapted to receive sheets of metal between them, aU-shaped channel made in one of the jaws, andacorrespondingly shaped diehaving a shank extending into the other jaw, a spring acting against theend of the shank, a guide slot and pin by which the movements of theshank and die are limited, substantially as herein described.

19. In a can body forming machine, independent jaws reciprocating to andfrom each other and adapted to receive sheets of metal between them, aU-shaped channel made in one of the jaws, a correspondingly shaped dievyieldingly connected with the other jaw about which the sheet of metalis folded by the approach of the jaws to each other, a carrier barreciprocating freely through the open slot in the lower part of the diehaving a groove or channel made in its lower surface and a hook bar withdogs (3 adapted to engage the rear edge of the sheet of metal to preventits being retracted by the rearward movement of the bar, and a channelin the carrier bar into which said hooks fall, substantially as hereindescribed.

20. In a can body forming machine, jaws movable to and from each otherwith a channel in one, and a corresponding die connected with the other,whereby the sheets of metal are first bent into a U-shaped form, andgrooves in one of the jaws by which the upturned edges of the sheet arecurved into hook form, a movable and stationary jaw succeeding the firstnamed jaws, and adapted to receive the partially bent sheet, areciprocating carrier bar and attachments by which the sheet is movedfrom the first to the second jaws, the uppermost of the first jawsremaining in its depressed position until the sheet has moved into thesecond jaws whereby the grooves O by which the hook flanges are formedcontinue to engage the upper edges of the sheet of metal and preventtheir springing apart until they have been introduced between the secondset of jaws, substantially as herein described.

21. In a can body forming machine, reciprocating jaws between which thesheet of metal is received, and by which it is partially bent intocylindrical form, and hookshaped flanges formed upon its upper edges, asecond set of jaws and a reciprocating carrier by which the partiallybent sheet is advanced fromthe first set of jaws to the second, the

lowermost of the second set of jaws being stationary and having aU-shaped channel formed in it to receive the lower part of the sheet,and a movable upper jaw having its lower edges formed with concavechannels of difiterent curvature and radius, whereby the upper edges ofthe metal are drawn toward each other when the upper jaw approaches thelower one, and the hook-shaped edges are caused to interlock with eachother, substantially as herein described.

22. In a can body forming machine, jaws by which the sheet of metal isbent, and hook shaped flanges formed upon its upper edges, other jaws,and a carrier by which the sheet 1s advanced from the first named jawsbetween the second ones wherein the sheet is bent and the hook edgesinterlock, a third pair of stationary jaws into which the partiallyformed can is delivered by the carrier, a guide projecting downward fromthe upper jaw which forms contact with the upper portion of the seam asthe can enters the jaws and guides it into position, and a correspondingguide upon the top of the carrier by which the inner portion. of theseam is guided into close contact with the enter one, and a rollerjournaled in the upper part of the carrier bar rolling in contact withand closing the scam in the interior of the can when the bar isretracted, substantially as herein described.

23. In a can body forming machine, the jaws into which the can body ismoved after the hook edges of the seam have been interlocked, guides bywhich the two parts of the seam are directed and pressed into contactwith each other, a roller in the top of the carrier by which the seam isfinally closed on the interior of the can when the carrier bar isretracted, a corresponding supporting roller in the bottom of thecarrier bar, and side rollers by which the bar is retained centrallywithin the jaws and the can body, said side rollers having channels orgrooves formedin them, and spring-actuated hooks V pivoted to the jawsand adapted to engage therear edge of the can to hold it in place in thejaws while the carrier bar is being retracted, said hooks passingthrough the slots in the said rollers as the latter are drawn backward,substantially as herein described.

2%. In a can body forming machine, jaws movable to and from each otherand adapted to receive sheets of metal between them, a forming die onone jaw and a channel in the opposing jaw adapted to fit said diewhereby the sheet of metal is shaped around the said die, said jaws alsoprovided with means by which the edges of the sheet are bent intohoolcform by the approach of the jaws, other pairs of jaws adapted tooperate respectively upon the sheet or can body when advanced to saidpairs of jaws to respectively complete the formation of the can body andto close the seam thereof, and means for advancing the sheets and canbodies, said machine adapted to be reversed and operate with either sideuppermost.

In witness whereof I have hereunto set my hand.

CLARENCE M. SYMONDS.

IVitnesses:

S. H. NOURSE, J. A. BAYLESS.

